linux-kernel - Re: [PATCH] dtc: also check <yaml.h> for libyaml

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Date:   Mon, 8 Jun 2020 13:09:27 -0600
From:   Rob Herring <robh@...nel.org>
To:     Jiping Ma <jiping.ma2@...driver.com>
Cc:     Frank Rowand <frowand.list@...il.com>, devicetree@...r.kernel.org,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] dtc: also check <yaml.h> for libyaml

On Mon, Jun 8, 2020 at 2:42 AM Jiping Ma <jiping.ma2@...driver.com> wrote:
>
> yamltree.c includes <yaml.h>, If /usr/include/yaml.h does not exist,
> it fails to build.

Does this patch fix your issue?:

https://lore.kernel.org/linux-devicetree/20200505100319.741454-1-masahiroy@kernel.org/


> Signed-off-by: Jiping Ma <jiping.ma2@...driver.com>
> ---
>  scripts/dtc/Makefile | 4 ++++
>  1 file changed, 4 insertions(+)
>
> diff --git a/scripts/dtc/Makefile b/scripts/dtc/Makefile
> index b5a5b1c..b49dfea 100644
> --- a/scripts/dtc/Makefile
> +++ b/scripts/dtc/Makefile
> @@ -18,9 +18,13 @@ $(error dtc needs libyaml for DT schema validation support. \
>  endif
>  HOST_EXTRACFLAGS += -DNO_YAML
>  else
> +ifeq ($(wildcard /usr/include/yaml.h),)
> +HOST_EXTRACFLAGS += -DNO_YAML
> +else
>  dtc-objs       += yamltree.o
>  HOSTLDLIBS_dtc := $(shell pkg-config yaml-0.1 --libs)
>  endif
> +endif
>
>  # Generated files need one more search path to include headers in source tree
>  HOSTCFLAGS_dtc-lexer.lex.o := -I $(srctree)/$(src)
> --
> 1.9.1
>